Sample subpackaging device for food inspection

Abstract

The invention relates to a food inspection sample subpackaging device which comprises a base, a U-shaped supporting frame is fixedly arranged at the top of the base, a subpackaging barrel is fixedly arranged on one side of the top of the U-shaped supporting frame, a piston barrel is fixedly arranged on the other side of the top of the U-shaped supporting frame, a liquid inlet pipe is arranged between the subpackaging barrel and the piston barrel, and a liquid outlet pipe is fixedly connected to the side, close to the liquid inlet pipe, of the bottom of the piston barrel. One side of the U-shaped supporting frame is provided with a push-pull mechanism used for moving the piston rod, the top of the base is rotationally connected with a placement seat, the top of the placement seat is provided with a plurality of sample bottles, and the bottom of the liquid outlet pipe penetrates through the U-shaped supporting frame and corresponds to the sample bottles in position; a driving mechanism for rotating the placing seat is arranged in the base, and the driving mechanism and the push-pull mechanism are in linkage action. According to the invention, through sequential intermittent filling of the liquid sample and replacement of the sample bottle, and synchronous coordination control of the filling of the liquid sample and the replacement of the sample bottle, continuous sub-packaging can be realized, and the sample can be accurately sub-packaged into the sample bottle each time.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, in particular to a sample dispenser for food inspection. Background Art

[0002] Food inspection is the inspection of the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products to ensure that the product quality is qualified.

[0003] During inspection, the same food sample needs to undergo multiple types of tests, including microbiological, chemical, heavy metal, and sensory tests. Different test items require different reagents and operating conditions. For example, microbiological testing requires aseptic operation, while chemical testing may use organic solvents. Different test items also require different storage conditions. For example, vitamin testing requires freezing in the dark, and sensory analysis requires sealing at room temperature. Therefore, sample packaging is an important step to ensure the accuracy of test results.

[0004] Liquid samples are common and important detection objects in food samples. When liquid samples are packaged manually, not only is the packaging efficiency low, but it is also easy to introduce human errors and even cross-contamination. Existing packaging devices can realize automatic filling of liquid samples, but require staff to manually replace sample bottles, which is inconvenient for multiple continuous packaging. Alternatively, sample bottles can be replaced automatically, but the replacement of sample bottles and the packaging and filling of samples are controlled separately, which easily leads to incoordination between the two, making it impossible to accurately fill the samples into the sample bottles. Based on this, a sample dispenser for food inspection is proposed. Summary of the Invention

[0005] The present invention provides a sample dispenser for food inspection, which is used to solve the problem mentioned in the above technical background that the existing dispensing device requires staff to manually replace sample bottles, which is inconvenient for multiple continuous dispensing, or the sample bottles can be replaced automatically, but the replacement of sample bottles and the dispensing and perfusion of samples are controlled separately, which easily leads to the problem that the two are not coordinated, so that the samples cannot be accurately dispensed into the sample bottles.

[0006] The top of the U-shaped support frame is fixedly provided with a U-shaped support frame, and the open end of the U-shaped support frame is fixedly connected to the two sides of the top of the base, a filling barrel is fixedly provided on one side of the top of the U-shaped support frame, and a piston cylinder is fixedly provided on the other side of the top of the U-shaped support frame, a liquid inlet pipe is provided between the filling barrel and the piston cylinder, and a liquid outlet pipe is fixedly connected to the bottom of the piston cylinder near the liquid inlet pipe, and a one-way valve is fixedly provided on the liquid inlet pipe and the liquid outlet pipe. A piston rod is provided in the piston cylinder, and a push-pull mechanism for moving the piston rod is provided on one side of the U-shaped support frame, and a placement seat is rotatably connected to the top of the base, and several sample bottles are provided on the top of the placement seat. The bottom of the liquid outlet pipe passes through the U-shaped support frame and corresponds to the position of the sample bottle, and a driving mechanism for rotating the placement seat is provided in the base.

[0007] Preferably, the driving mechanism includes a driving cavity opened in the base, a rotating column is fixedly provided in the middle of the bottom of the placement seat, the rotating column extends into the driving cavity and is rotatably connected to the bottom of the driving cavity, a driving motor is fixedly provided on one side of the bottom of the driving cavity, the output end of the driving motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a half gear, a first gear is fixedly provided on the rotating column, and the half gear is meshed with the first gear.

[0008] Preferably, the push-pull mechanism includes a first rotating rod rotatably connected to one side of the top of the U-shaped support frame, a turntable is fixedly provided on the top of the first rotating rod, a guide rod is provided on one side of the top of the turntable, the end of the piston rod is fixedly connected to a guide plate, a guide groove is provided in the guide plate, and the guide rod is slidably connected in the guide groove.

[0009] Preferably, a second rotating rod is rotatably connected to one side of the bottom of the driving cavity, a second gear is fixedly provided on the top of the second rotating rod, the second gear is meshed with the half gear, the bottom of the first rotating rod extends through the driving cavity and is rotatably connected to the bottom of the driving cavity, and a transmission wheel is fixedly sleeved on the first rotating rod and the second rotating rod, and the two transmission wheels are connected by a transmission belt.

[0010] Preferably, the gear ratio of the half gear to the first gear is 1:6, and the gear ratio of the half gear to the second gear is 1:1.

[0011] Preferably, the number of the sample bottles is set to six, and the sample bottles are evenly distributed with the center of the placement seat as the center of the circle.

[0012] Preferably, a placement groove is provided on the top of the placement seat, and the size of the placement groove is adapted to the size of the sample bottle.

[0013] Preferably, a positioning assembly is provided on the top of the base, and the number of the positioning assemblies is set to six and is evenly distributed with the center of the placement seat as the center of a circle.

[0014] Preferably, the positioning assembly includes a positioning groove opened on the top of the base, a spring is fixed in the positioning groove, a positioning ball is fixed on the top of the spring, a positioning hole is opened at the bottom of the placement seat, and the positioning ball is clamped in the positioning hole under the action of the spring.

[0015] Preferably, a first hydraulic rod is provided in the piston rod, the first hydraulic rod is fixedly connected to the guide plate, and a second hydraulic rod is fixedly provided on the top of the turntable, the second hydraulic rod is fixedly connected to the guide rod.

[0016] The beneficial effects of the food inspection sample dispenser of the present invention are as follows:

[0017] The present invention drives the rotation of the rotating shaft and the half gear by a driving motor, and the half gear intermittently drives the rotation of the first gear and the second gear. When the half gear meshes with the second gear to rotate, it drives the second rotating rod to rotate one circle, and under the transmission action of the transmission wheel and the transmission belt, the first rotating rod, the turntable and the guide rod are driven to rotate synchronously for one circle. While rotating, the guide rod slides in the guide groove and simultaneously drives the guide plate to move left and right for one cycle. The guide plate drives the piston rod to move left and right for one cycle to perfuse the sample bottle below and complete one-time packaging of the sample. When the half gear rotates to mesh with the first gear, it drives the rotating column and the placement seat and the sample bottle on the top thereof to rotate 60°, and the sample bottle under the liquid outlet pipe is replaced once. This reciprocating process achieves continuous packaging of the sample, and the perfusion of the liquid sample and the replacement of the sample bottle are carried out in an orderly intermittent manner. The two are synchronously and coordinatedly controlled to ensure that the sample can be accurately packaged into the sample bottle every time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 A in the middle is an enlarged schematic diagram;

[0020] Figure 3 It is a top view schematic diagram of the connection structure of the first gear, the half gear and the second gear of the present invention;

[0021] Figure 4 This is a schematic diagram of the top view of the placement seat of the present invention;

[0022] Figure 5 For the present invention Figure 1 The enlarged schematic diagram of point B in the middle;

[0023] Figure 6 This is a schematic diagram of the distribution structure of the positioning grooves on the top of the base of the present invention;

[0024] Figure 7 For the present invention Figure 1 The enlarged schematic diagram of point C in the middle;

[0025] Figure 8 It is a top view schematic diagram of the connection structure between the second hydraulic rod and the guide rod in the turntable of the present invention;

[0026] Figure 9 It is a schematic top view of the entire invention.

[0027] In the figure: 1. base, 2. U-shaped support frame, 3. filling barrel, 4. piston cylinder, 5. liquid inlet pipe, 6. liquid outlet pipe, 7. one-way valve, 8. piston rod, 9. placement seat, 10. sample bottle, 11. drive chamber, 12. rotating column, 13. drive motor, 14. rotating shaft, 15. half gear, 16. first gear, 17. first rotating rod, 18. turntable, 19. guide rod, 20. guide plate, 21. guide groove, 22. second rotating rod, 23. second gear, 24. transmission wheel, 25. transmission belt, 26. placement groove, 27. positioning groove, 28. spring, 29. positioning ball, 30. positioning hole, 31. first hydraulic rod, 32. second hydraulic rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] like Figure 1-9As shown, a sample dispenser for food inspection includes a base 1, a U-shaped support frame 2 is fixedly provided on the top of the base 1, the open end of the U-shaped support frame 2 is fixedly connected to the two sides of the top of the base 1, a dispensing barrel 3 is fixedly provided on one side of the top of the U-shaped support frame 2, the top of the dispensing barrel 3 is provided with a barrel mouth, and a barrel cover is threadedly connected to the barrel mouth, a piston cylinder 4 is fixedly provided on the other side of the top of the U-shaped support frame 2, a liquid inlet pipe 5 is provided between the dispensing barrel 3 and the piston cylinder 4, a liquid outlet pipe 6 is fixedly connected to the bottom of the piston cylinder 4 near the liquid inlet pipe 5, and a one-way Valve 7 ensures that the liquid can only flow from the filling barrel 3 to the piston cylinder 4 and from the piston cylinder 4 downward into the liquid outlet pipe 6. A piston rod 8 is provided in the piston cylinder 4. A push-pull mechanism for moving the piston rod 8 is provided on one side of the U-shaped support frame 2. The top of the base 1 is rotatably connected to a placement seat 9. Several sample bottles 10 are provided on the top of the placement seat 9. The bottom of the liquid outlet pipe 6 passes through the U-shaped support frame 2 and corresponds to the position of the sample bottle 10. A driving mechanism for rotating the placement seat 9 is provided in the base 1, and the driving mechanism and the push-pull mechanism act in linkage.

[0030] The driving mechanism includes a driving cavity 11 opened in the base 1, a rotating column 12 is fixedly provided in the middle of the bottom of the placement seat 9, the rotating column 12 extends through the driving cavity 11 and is rotatably connected to the bottom of the driving cavity 11, a driving motor 13 is fixedly provided on one side of the bottom of the driving cavity 11, the output end of the driving motor 13 is fixedly connected to a rotating shaft 14, the top of the rotating shaft 14 is fixedly connected to a half gear 15, a first gear 16 is fixedly provided on the rotating column 12, and the half gear 15 is meshed with the first gear 16.

[0031] The driving motor 13 drives the rotating shaft 14 and the half gear 15 to rotate, and the half gear 15 intermittently engages the first gear 16 to rotate, thereby driving the rotating column 12 and the placement seat 9 to rotate. The rotation of the placement seat 9 drives the sample bottle 10 on the top thereof to rotate, thereby replacing the sample bottle 10 under the liquid outlet tube 6.

[0032] The push-pull mechanism includes a first rotating rod 17 rotatably connected to one side of the top of the U-shaped support frame 2, a turntable 18 is fixedly provided on the top of the first rotating rod 17, a guide rod 19 is provided on one side of the top of the turntable 18, and the end of the piston rod 8 is fixedly connected to a guide plate 20, a guide groove 21 is provided in the guide plate 20, and the guide rod 19 is slidably connected in the guide groove 21.

[0033] The turntable 18 and the guide rod 19 are driven to rotate by the first rotating rod 17. While rotating, the guide rod 19 slides in the guide groove 21 and drives the guide plate 20 to move left and right. The guide plate 20 drives the piston rod 8 to move left and right. The piston rod 8 moves to the right to draw the liquid sample in the filling barrel 3 into the piston cylinder 4. The piston rod 8 moves to the left to discharge the liquid sample in the piston cylinder 4 into the sample bottle 10, completing one-time filling of the sample.

[0034] A second rotating rod 22 is rotatably connected to one side of the bottom of the driving chamber 11, and a second gear 23 is fixedly provided on the top of the second rotating rod 22. The second gear 23 is meshed with the half gear 15. When the half gear 15 is meshed with the second gear 23, the half gear 15 is separated from the first gear 16. The bottom of the first rotating rod 17 extends into the driving chamber 11 and is rotatably connected to the bottom of the driving chamber 11. A through groove for the passage of the first rotating rod 17 is provided on the side wall of the U-shaped support frame 2. A transmission wheel 24 is fixedly provided on the first rotating rod 17 and the second rotating rod 22. The two transmission wheels 24 are connected by a transmission belt 25.

[0035] The half gear 15 is arranged in the middle position of the first gear 16 and the second gear 23. When the half gear 15 engages with the second gear 23 and rotates, it drives the second rotating rod 22 to rotate, and under the transmission action of the transmission wheel 24 and the transmission belt 25, it drives the first rotating rod 17 to rotate synchronously. Therefore, the placement seat 9 rotates to replace the sample bottle 10 on the top and the piston rod 8 moves left and right so that the piston cylinder 4 completes the one-time packaging of the liquid sample in an orderly and intermittent manner. The two are synchronously coordinated and controlled to ensure that the sample can be accurately packaged into the sample bottle 10 every time.

[0036] The gear ratio of the half gear 15 to the first gear 16 is 1:6, and the gear ratio of the half gear 15 to the second gear 23 is 1:1, so that every time the half gear 15 rotates one circle, it first drives the first gear 16 to rotate 60°, and then drives the second gear 23 to rotate one circle, so that after each rotation of the placement seat 9 by 60°, the push-pull rod 8 will complete a complete push and pull, completing the sample packaging.

[0037] The number of the sample bottles 10 is set to six, and the sample bottles 10 are evenly distributed with the center of the placement seat 9 as the center of the circle. Whenever the placement seat 9 rotates 60°, the adjacent sample bottles 10 will also rotate 60°, so that the sample bottles 10 located below the liquid outlet tube 6 can be replaced in an orderly manner.

[0038] A placement groove 26 is provided on the top of the placement seat 9. The size of the placement groove 26 is adapted to the size of the sample bottle 10. The sample bottle 10 is snapped into the placement groove 26, which not only facilitates the placement and removal of the sample bottle, but also improves the stability of the sample bottle 10 on the top of the placement seat, and ensures that the opening of the sample bottle 10 accurately corresponds to the position of the liquid outlet tube 6, ensuring that all the liquid flowing out of the liquid outlet tube 6 can be poured into the sample bottle 10.

[0039] A positioning assembly for fixing the placement seat 9 is provided on the top of the base 1 . The number of the positioning assemblies is set to six and is evenly distributed with the center of the placement seat 9 as the center of a circle.

[0040] The positioning assembly includes a positioning groove 27 opened at the top of the base 1, and a spring 28 is fixed in the positioning groove 27. A positioning ball 29 is fixed on the top of the spring 28. A positioning hole 30 is opened at the bottom of the placement seat 9, and the positioning ball 29 is clamped in the positioning hole 30 under the action of the spring 28. The positioning groove 27 and the positioning hole 30 are evenly distributed with the center of the placement seat 9 as the center of the circle. When the placement seat 9 rotates, the positioning ball 29 is forced to move downward into the positioning groove 27 and compress the spring 28 at the same time. When the placement seat 9 rotates to 60° and stops rotating, the positioning hole 30 at the bottom of the placement seat just rotates to correspond to the positioning groove 27. The positioning ball 29 is re-clamped in the positioning hole 30 under the resetting action of the spring 28, so that when the placement seat 9 rotates 60° to replace the sample bottle 10, it can stably stay in the 60° rotation position.

[0041] As attached Figure 7 and attached Figure 8 As shown, a first hydraulic rod 31 is provided in the piston rod 8, and the first hydraulic rod 31 is fixedly connected to the guide plate 20. A second hydraulic rod 32 is fixedly provided on the top of the turntable 18, and the second hydraulic rod 32 is fixedly connected to the guide rod 19. Specifically, a mounting groove is provided in the piston rod 8, and the first hydraulic rod 31 is fixedly provided in the mounting groove. The end of the hydraulic rod 31 passes through the mounting groove and is fixedly connected to the guide plate 20. A slide groove is provided on the top of the turntable 18, and the slide groove is provided on the central axis of the turntable 18. The second hydraulic rod 32 is fixedly provided on one side of the slide groove, and the guide rod 19 is slidably connected to the slide groove. A scale line is provided on one side of the slide groove, and the scale line is consistent with the capacity in the piston cylinder 4. Moving the guide rod 19 to the corresponding scale indicates the amount of packaging on one side of the piston cylinder 4.

[0042] The second hydraulic rod drives the guide rod 19 to move, and at the same time, the first hydraulic rod 31 drives the guide plate 20 to move a corresponding distance to adapt to the guide rod 19. By adjusting the distance between the guide rod 19 and the center of the turntable 18, the distance that the guide rod 19 drives the guide plate 20 and the piston rod 8 to move as the turntable 18 rotates is adjusted, thereby adjusting the liquid packaging amount.

[0043] When in use, add the liquid sample to be packaged into the packaging barrel 3, place the sample bottle 10 in the placement groove 26 on the top of the placement seat 9, start the drive motor 13 to drive the rotation of the rotating shaft 14 and the half gear 15, and when the half gear 15 engages with the second gear 23 to rotate, it drives the second rotating rod 22 to rotate one circle, and under the transmission action of the transmission wheel 24 and the transmission belt 25, drives the first rotating rod 17, the turntable 18 and the guide rod 19 to rotate synchronously for one circle. While rotating, the guide rod 19 slides in the guide groove 21 and simultaneously drives the guide plate 20 to move left and right for one cycle. The guide plate 20 drives the piston rod 8 to move left and right, and the activity The stopper rod 8 moves to the right to draw the liquid sample in the filling barrel 3 into the piston cylinder 4, and the piston rod 8 moves to the left to discharge the liquid sample in the piston cylinder 4 into the sample bottle 10, completing one-time filling of the sample. The half gear 15 rotates and engages with the first gear 16, driving the rotating column 12 and the placement seat 9 and the sample bottle on the top to rotate 60°, and the sample bottle 10 under the liquid outlet pipe 6 is replaced. This reciprocating process achieves continuous filling of the sample, and the perfusion of the liquid sample and the replacement of the sample bottle 10 are carried out in an orderly intermittent manner. The two are synchronously coordinated and controlled to ensure that the sample can be accurately filled into the sample bottle 10 every time.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sample dispenser for food inspection, comprising a base (1), characterized in that: A U-shaped support frame (2) is fixedly provided on the top of the base (1), and the open end of the U-shaped support frame (2) is fixedly connected to both sides of the top of the base (1). A filling barrel (3) is fixedly provided on one side of the top of the U-shaped support frame (2), and a piston cylinder (4) is fixedly provided on the other side of the top of the U-shaped support frame (2). A liquid inlet pipe (5) is provided between the filling barrel (3) and the piston cylinder (4), and a liquid outlet pipe (6) is fixedly connected to the bottom of the piston cylinder (4) near the liquid inlet pipe (5). The liquid inlet pipe (5) and the liquid outlet pipe (6) are fixedly connected to each other. A one-way valve (7) is fixedly provided on each of the two ends of the piston cylinder (4), a piston rod (8) is provided in the piston cylinder (4), a push-pull mechanism for moving the piston rod (8) is provided on one side of the U-shaped support frame (2), a placement seat (9) is rotatably connected to the top of the base (1), a plurality of sample bottles (10) are provided on the top of the placement seat (9), the bottom of the liquid outlet pipe (6) passes through the U-shaped support frame (2) and corresponds to the position of the sample bottle (10), and a driving mechanism for rotating the placement seat (9) is provided in the base (1).

2. A food testing sample dispenser according to claim 1, characterized in that: The driving mechanism comprises a driving cavity (11) opened in the base (1); a rotating column (12) is fixedly provided in the middle of the bottom of the placement seat (9); the rotating column (12) extends through the driving cavity (11) and is rotatably connected to the bottom of the driving cavity (11); a driving motor (13) is fixedly provided on one side of the bottom of the driving cavity (11); the output end of the driving motor (13) is fixedly connected to a rotating shaft (14); the top of the rotating shaft (14) is fixedly connected to a half gear (15); a first gear (16) is fixedly provided on the rotating column (12); the half gear (15) is meshed with the first gear (16).

3. A food testing sample dispenser according to claim 2, characterized in that: The push-pull mechanism comprises a first rotating rod (17) rotatably connected to one side of the top of the U-shaped support frame (2); a turntable (18) is fixedly provided on the top of the first rotating rod (17); a guide rod (19) is provided on one side of the top of the turntable (18); an end of the piston rod (8) is fixedly connected to a guide plate (20); a guide groove (21) is provided in the guide plate (20); and the guide rod (19) is slidably connected in the guide groove (21).

4. A food testing sample dispenser according to claim 3, characterized in that: A second rotating rod (22) is rotatably connected to one side of the bottom of the driving chamber (11); a second gear (23) is fixedly provided on the top of the second rotating rod (22); the second gear (23) is meshedly connected with the half gear (15); the bottom of the first rotating rod (17) extends through the driving chamber (11) and is rotatably connected to the bottom of the driving chamber (11); a transmission wheel (24) is fixedly sleeved on both the first rotating rod (17) and the second rotating rod (22); and the two transmission wheels (24) are connected by a transmission belt (25).

5. The food testing sample dispenser according to claim 4, characterized in that: The gear ratio between the half gear (15) and the first gear (16) is 1:6, and the gear ratio between the half gear (15) and the second gear (23) is 1:

1.

6. The food testing sample dispenser according to claim 5, characterized in that: The number of the sample bottles (10) is set to six, and the sample bottles (10) are evenly distributed with the center of the placement seat (9) as the center of the circle.

7. A food testing sample dispenser according to claim 6, characterized in that: A placement groove (26) is provided on the top of the placement seat (9), and the size of the placement groove (26) is adapted to the size of the sample bottle (10).

8. The food testing sample dispenser according to claim 5, characterized in that: A positioning assembly is provided on the top of the base (1), and the number of the positioning assemblies is set to six and is evenly distributed with the center of the placement seat (9) as the center of a circle.

9. The food testing sample dispenser according to claim 8, characterized in that: The positioning assembly comprises a positioning groove (27) provided on the top of the base (1), a spring (28) being fixedly provided in the positioning groove (27), a positioning ball (29) being fixedly provided on the top of the spring (28), a positioning hole (30) being provided on the bottom of the placement seat (9), and the positioning ball (29) being engaged in the positioning hole (30) under the action of the spring (28).

10. The food testing sample dispenser according to claim 3, characterized in that: A first hydraulic rod (31) is provided inside the piston rod (8), and the first hydraulic rod (31) is fixedly connected to the guide plate (20). A second hydraulic rod (32) is fixedly provided on the top of the turntable (18), and the second hydraulic rod (32) is fixedly connected to the guide rod (19).

Images